Description: Dirr states that Sweet Autumn Clematis is a ‘rampant, rampaging vine which engulfs every structure in sight’. This may be true in certain locations but here in New England it can be kept in control quite easily and is well worth the effort for the spectacular show it puts on in the fall. Let’s just say it is a vigorous vine which is covered in the late summer and early fall with small white fragrant flowers, approximately 1 inch across. The plant, when large enough, will give the appearance of a bank of new fallen snow. It is a good plant to cover ugly cement walls, as it will hang down over them, or rocky rubble areas that want to be put out of sight. It is not fussy as to soil types although it prefers good drainage and full sun if possible.